Connection Example Diagram for Digital Outputs.
2100-D
1
2
3
NO
COM Relay 1
NC
4
5
6
NO
COM Relay 2
NC
7
8
9
NO
COM Relay 3
NC
10
11
12
NO
COM Relay 4
NC
13
14
15
NO
COM Relay 5
NC
HEATING
COOLING
12
12
12
12
12
12
1/6hp, 250Vac
Inductive
2A, 250Vac
Resistive
2A, 30Vdc
Resistive
0.3A, 110Vdc
Resistive
Note 1.
With relays NOT energized:
NO = Normally Open.
COM = Common.
NC = Normally Closed.
Note 2.
The first ten relays are change-over. The last two
(11 and 12) are Normally Open.
Note 3.
Each relay can be configured for a ‘Normally ON’
or ‘Normally OFF’ output state. (E.g. for fail safe
operation.) The ‘Normally ON/OFF’ settings are
retained in software on power down, but the relays
are de-energized. Refer to MicroScan Configuration
Manual.
Note 4.
Relay 12 can be selected as a Comms failure time-out
alarm. The relay is normally active and deactivates
after 5mins if no Comms messages are received.
This function does not detect microprocessor failure.
When used for this function the relay cannot be used
for any other function.
Note 5.
LED indication on each output when each relay is
energized.
14.04-7
2100-D
40
41
42
43
44
45
46
47
Note 1.
Inputs can be:
State - i.e. ON or OFF
Count - low speed: 0~20Hz; 50ms debounce
Count - high speed: 0~500Hz; 2ms debounce
Note 2.
LED indication per input. LED intensity depends
on voltage level at the input terminals. Refer to
‘
Specifications
’ for input loads.
Note 3.
For scaling of counter inputs, totalising and flow
data conversion, refer to Microscan
Configuration Manual, line setup/counter scaling.
Note 4.
All cables must be screened, with screen earthed
at one end only. Refer ‘The Proper Installation &
Wiring of the 2100-D.’
Note 5.
4K7 resistor not required for most types of 3 wire
PNP transducers.
Section C:
Connection Example Diagram for Digital Inputs.
48
49
24Vdc
3 wire NPN proximity
transducer, paddle wheel, etc.
4.7k
Ω
o/p
24Vdc
3 wire PNP proximity
transducer, etc.
Refer note 5.
4.7k
Ω
o/p
Digital Output
5~30Vdc
24Vdc
Reed Switch or
Relay contact.
24Vdc
Open Collector
